Re-enable zone export list filter test

Filter criteria are respected when listing zone imports and exports

Depends-On: https://review.opendev.org/789711
Change-Id: I06459a6208757b95117af3f270fde60b847f0b97
diff --git a/designate_tempest_plugin/tests/api/v2/test_zones_exports.py b/designate_tempest_plugin/tests/api/v2/test_zones_exports.py
index ef9ba6d..e1b0226 100644
--- a/designate_tempest_plugin/tests/api/v2/test_zones_exports.py
+++ b/designate_tempest_plugin/tests/api/v2/test_zones_exports.py
@@ -159,7 +159,6 @@
                 'listed IDs:{}'.format(id, listed_exports_ids))
 
     @decorators.idempotent_id('e4a11a14-9aaa-11eb-be59-74e5f9e2a801')
-    @decorators.skip_because(bug='1926058')
     def test_list_zone_exports_filter_results(self):
 
         LOG.info('Create a primary zone and its export')
@@ -209,9 +208,8 @@
         self.assertEqual(
             [], self.admin_client.list_zone_exports(
                 headers={'x-auth-all-projects': True},
-                params={'zone_id': primary_zone['id']})[1]['exports'],
-            'Failed, filtered result should contain a single zone '
-            '(primary zone export)')
+                params={'zone_id': alt_zone['id']})[1]['exports'],
+            'Failed, filtered result should be empty.')
 
 
 class ZonesExportTestNegative(BaseZoneExportsTest):